Fix typo in new json output

Author: eduard93

MDX2JSON/Utils.cls.xml

@@ -73,7 +73,7 @@ Automatic processing of MDX query and outputting resulting JSON.<br>
 	#if $$$comClassDefined("%ZEN.Auxiliary.jsonMDXProvider")
 		set Provider = ##class(%ZEN.Auxiliary.jsonMDXProvider).%New()
 		set Provider.mdxQuery = pMDX
-		set st = tProvider.%DrawJSON()
+		set st = Provider.%DrawJSON()
 	#else
 		set st = $$$ERROR($$$GeneralError,"Class %ZEN.Auxiliary.jsonMDXProvider does not exist")
 	#endif